EP 1729545 A4 20081029 - ORGANIC ELECTROLUMINESCENT DEVICE AND DISPLAY

Title (en)

ORGANIC ELECTROLUMINESCENT DEVICE AND DISPLAY

Title (de)

ORGANISCHES ELEKTROLUMINESZENZBAUELEMENT UND ANZEIGE

Title (fr)

COMPOSANT ET AFFICHEUR LECTROLUMINESCENT ORGANIQUE

Publication

EP 1729545 A4 20081029 (EN)

Application

EP 05710217 A 20050215

Priority

JP 2005002266 W 20050215
JP 2004086905 A 20040324

Abstract (en)

[origin: EP1729545A1] An organic electroluminescent device comprising at least an anode 2, a first emitting layer 5, a hole barrier layer 6, a second emitting layer 7 and a cathode 9 in this order; wherein the first emitting layer 5 and the second emitting layer 7 both comprise a hole transporting material. The organic EL device is small in chromaticity change and has high efficiency.

IPC 8 full level

H01L 51/50 (2006.01); H05B 33/14 (2006.01); C09K 11/06 (2006.01); H05B 33/12 (2006.01); H05B 33/22 (2006.01); H01L 51/00 (2006.01)

CPC (source: EP KR US)

C09K 11/06 (2013.01 - EP KR US); H05B 33/12 (2013.01 - KR); H05B 33/14 (2013.01 - EP KR US); H05B 33/22 (2013.01 - KR); H10K 50/125 (2023.02 - EP US); C09K 2211/1011 (2013.01 - EP US); C09K 2211/1029 (2013.01 - EP US); C09K 2211/1044 (2013.01 - EP US); H10K 50/165 (2023.02 - EP US); H10K 85/324 (2023.02 - EP US); H10K 85/342 (2023.02 - EP US); H10K 85/60 (2023.02 - EP US); H10K 85/624 (2023.02 - EP US); H10K 85/631 (2023.02 - EP US); H10K 85/633 (2023.02 - EP US); H10K 85/6565 (2023.02 - EP US); H10K 85/657 (2023.02 - EP US); H10K 85/6572 (2023.02 - EP US)

Citation (search report)

[E] EP 1595933 A1 20051116 - IDEMITSU KOSAN CO [JP]
See references of WO 2005091685A1

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR

DOCDB simple family (publication)

EP 1729545 A1 20061206; EP 1729545 A4 20081029; CN 100471355 C 20090318; CN 1910961 A 20070207; JP 2005276583 A 20051006; KR 20060121891 A 20061129; TW 200537980 A 20051116; US 2008246391 A1 20081009; US 7888865 B2 20110215; WO 2005091685 A1 20050929

DOCDB simple family (application)

EP 05710217 A 20050215; CN 200580002011 A 20050215; JP 2004086905 A 20040324; JP 2005002266 W 20050215; KR 20067005958 A 20060327; TW 94104913 A 20050218; US 57417905 A 20050215